[NTLK] AA NiMH Rechargeables

[Bradley Loeding]

Excellent. That's what I was hoping to hear. Bye bye NiCad. You will
not be missed.

-Brad


On Fri, Jan 29, 2010 at 2:45 PM, Joel M. Sciamma
<joel at inventors-emporium.co.uk> wrote:
> Brad wrote:
>
>> Anyone have good things to say about these fairly new low-self
>> discharge hybrid NiMH batteries? For example Sanyo has a brand called
>> Eneloop. How many days of average use can one expect to get with these
>> in a MP2x00?
>
> I find them to be the best batteries I have ever used, especially in
> the MP2K.
>
> I'm getting a couple of weeks of daily light use (often with
> backlight) but when the machine is not used and is just in standby, I
> think it would be months before they needed replacing. Eneloops have a
> slightly higher voltage than other NiMH cells, which is also a small
> benefit.
>
> Lighter the use, the better they are, because the low self-discharge
> means that they are always ready when conventional NiMH would be flat.
> So even for TV remotes and torches they are a good fit. Effectively it
> finally means the end of primary batteries for most circumstances and
> all the waste and expense they bring.
>
> I did a fair amount of research and it looks to me that the Eneloops
> have the best technology of this breed.
>
> One point to note is that these cells should not be fast-charged
> (200mA is probably ideal) so that implies an overnight or longer
> recharge time. I think this is well worth tolerating for what is close
> to an ideal battery.
> Depending on the application this might mean you have to have an extra
> set of cells to always have them ready.
>
> Joel.
>
>
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